Mô tả

Understanding steel plates and solid round steel bars is essential for businesses seeking the right materials for manufacturing and construction. Mechanical properties, common specifications, and updated market prices help optimize production efficiency and overall project costs.

Overview of Steel Plates and Solid Round Steel Bars

Definitions of Each Material

Steel plates and solid round steel bars are widely used industrial materials, each designed for specific structural and mechanical applications. They serve diverse sectors—from mechanical engineering to heavy construction.

• Steel plates: Flat, wide steel sheets with thicknesses ranging from a few millimeters to several hundred millimeters. Commonly used in steel structures, shipbuilding, and industrial manufacturing.
• Solid round steel bars: Cylindrical steel bars with standard diameters from φ6 to φ200, used for machine parts, shafts, bolts, and high-load components.

Mechanical Properties

• Steel plates: High tensile strength and hardness, excellent weldability and formability. Ideal for load-bearing structures and thick-plate machining.
• Solid round steel bars: Possess high longitudinal strength, good machinability, and reliable performance under torsion and bending—suitable for heavy mechanical components and precision machining.

Steel Plates – Detailed Classification

Hot-Rolled Steel Plates (HR)

Hot-rolled steel plates are produced at high temperatures, featuring a rougher surface and excellent formability for large structural components. HR plates are widely used in factories, bridges, and shipbuilding due to their strength and durability.

Cold-Rolled Steel Plates (CR)

Cold-rolled steel plates offer a smoother surface, tighter tolerances, and higher dimensional accuracy. They are ideal for automotive parts, electronics, machine casings, and applications requiring aesthetic finish.

Steel Plates Q345, SS400, A36…

Various grades—including Q345, SS400, and A36—provide different mechanical strengths:

• Q345: Known for high tensile strength and toughness
• SS400: Popular in industrial steel structures
• A36: Suitable for civil construction and general fabrication

These grades enable flexibility for light, medium, and heavy-duty applications.

Solid Round Steel Bars – Structure & Standards

Common Diameters (φ6 – φ200)

Solid round steel bars are available in standard diameters from 6 mm to 200 mm, allowing easy selection based on mechanical parts, shafts, or structural components. Standard sizing simplifies cutting, machining, turning, and welding.

Tensile Strength, Hardness & Machinability

Solid round steel bars offer:

• High tensile strength
• Excellent hardness and durability
• Outstanding machining capabilities (CNC, turning, drilling)
• Strong performance under torsion and bending

These properties make them suitable for drive shafts, fasteners, industrial equipment, and heavy-duty components.

Applications of Steel Plates & Solid Round Steel Bars

Mechanical Engineering & Steel Structures

Both steel plates and solid round steel bars play critical roles in mechanical manufacturing—from machine frames, beams, and structural parts to high-strength mechanical shafts. They enhance durability, reduce deformation, and increase service life.

Shipbuilding, Bridges & Infrastructure

HR steel plates and solid round steel bars are essential in ship hulls, bridges, ports, and infrastructure projects due to their load-bearing strength, corrosion resistance, and structural safety.

CNC Machining & Supporting Industries

Solid round steel bars are ideal for CNC machining, precision turning, milling, and drilling. They support the production of mechanical parts, mechatronics components, and auxiliary systems for industrial automation lines.

Standard Specifications & Dimensions

Weight & Specification Table for Steel Plates

Steel plate specification tables include details on thickness, weight, surface area, and load capacity. This information is vital for structural calculation, transportation planning, and material cost optimization.

Specification Table for Solid Round Steel Bars

Data for solid round steel bars includes diameter, weight per meter, tensile strength, and hardness. Knowing these specifications ensures accurate selection for mechanical parts, shafts, and heavy-load applications.

Latest Market Prices

Steel Plate Prices by Thickness

Steel plate prices vary depending on thickness, material grade, and whether the plate is hot-rolled or cold-rolled. Prices fluctuate with global steel markets and logistics costs.

Solid Round Steel Bar Prices by Diameter

Prices for solid round steel bars depend on diameter, material grade, and manufacturing standards. Larger diameters generally cost more due to higher production and transportation expenses.

Price Fluctuations by Week/Month

Steel prices may change weekly or monthly based on:

• Raw material costs
• Market demand
• Transportation and logistics fees

Contractors and manufacturers should monitor pricing trends to purchase at the optimal time.

Choosing the Right Steel Material for Your Business

Based on Industry Requirements

Each industry requires specific steel properties:

• Mechanical engineering → solid round steel bars for precision parts
• Shipbuilding & bridges → thick HR steel plates for heavy loads
• Construction → standard steel plates for structural frameworks

Based on Machining & Strength Needs

Choosing between steel plates and solid round steel bars depends on:

• Required tensile strength
• Machinability and formability
• Welding and bending performance
• Compliance with technical standards

Correct material selection improves final product quality and reduces manufacturing costs.

Why Choose CCN Vietnam for Steel Plates & Solid Round Steel Bars?

Steel plates and solid round steel bars are indispensable materials in manufacturing, construction, and industrial engineering. CCN Vietnam provides a wide range of specifications, certified quality, transparent pricing, and expert technical consultation. Partnering with CCN Vietnam ensures cost efficiency, reliable supply, and on-time project execution.

Contact CCN Vietnam now to receive updated pricing and professional guidance in selecting the best steel plates and solid round steel bars for your project!